/**
 * Extracts the contents of any elements that look like
 * code>lt;content tag='foo'gt;...lt;/contentgt;/code> and write the contents
 * to a page property (page.foo).
 *
 * p>This is a cheap and cheerful mechanism for embedding multiple components in a
 * page that can be used in different places in decorators./p>
 *
 * @author Joe Walnes
 */
public class ContentBlockExtractingRule extends BasicBlockRuleString> {
 private final ContentProperty propertyToExport;
 public ContentBlockExtractingRule(ContentProperty propertyToExport) {
  this.propertyToExport = propertyToExport;
 }
 @Override
 protected String processStart(Tag tag) throws IOException {
  tagProcessorContext.pushBuffer();
  return tag.getAttributeValue("tag", false);
 }
 @Override
 protected void processEnd(Tag tag, String tagId) throws IOException {
  propertyToExport.getChild(tagId).setValue(tagProcessorContext.currentBufferContents());
  tagProcessorContext.popBuffer();
 }
}

public class ScriptTagRuleBundle implements TagRuleBundle {
 @Override
 public void install(State defaultState, ContentProperty contentProperty, SiteMeshContext siteMeshContext) {
  defaultState.addRule("content", new ContentBlockExtractingRule(contentProperty.getChild("page")));
 }
 @Override
 public void cleanUp(State defaultState, ContentProperty contentProperty, SiteMeshContext siteMeshContext) {
 }
}

content tag="reference">
script type="text/javascript" src="%=path%>/plugins/select2/js/select2.min.js">/script>
script type="text/javascript" src="%=path%>/plugins/select2/js/i18n/zh-CN.js">/script>
script type="text/javascript" src="%=path%>/plugins/bootstrap-modal/js/bootstrap-modal.js">/script>
script type="text/javascript" src="%=path%>/plugins/bootstrap-modal/js/bootstrap-modalmanager.js">/script>
/content>

body class="mainBody">
sitemesh:write property='body'/>
sitemesh:write property='page.reference'/>
/body>

propertyToExport.getChild(tagId).setValue(tagProcessorContext.currentBufferContents());